JP6267898B2 - Suction port body and electric vacuum cleaner provided with the same - Google Patents

Description

  The present invention relates to a suction port provided in a vacuum cleaner and a vacuum cleaner including the same.

  In the conventional vacuum cleaner in which the vacuum cleaner main body and the suction port body are connected by a hose, the suction port body is connected to the suction port body having a dust collection opening and connected to the suction port body so as to be able to swing. It is common to have a tube.

  For example, in Patent Document 1, the suction port body has a dust collection opening and a suction port having a pair of first rollers on both sides of the dust collection opening, and a longitudinal middle of the suction port is orthogonal to the longitudinal direction. An extension part extending in the direction, and the connection pipe is connected to the extension part so as to be able to swing around an axis parallel to the longitudinal direction (around the first axis). The suction port body provided with the structure by which the 2nd roller was provided in the lower surface side of is disclosed.

  In the suction port body of Patent Document 1, the swing angle of the connection pipe with respect to the suction port body is about 90 °. Further, the pair of first rollers is configured as a part of a housing on the lower surface side of the suction port portion, and is provided in a pair of roller units that press both ends of the rotating brush provided in the dust collection opening. One roller unit is attached to the frame portion of the suction port portion with screws.

JP 2011-55908 A

  When cleaning while moving the suction port body in the electric vacuum cleaner of Patent Document 1 back and forth, when the suction port body is pulled closer to the user, the connection pipe rises until the connection pipe becomes vertical with respect to the floor surface. At this time, for example, when the user bends the elbow when pulling the suction port body, the connecting pipe may be pulled up and the second roller may be lifted from the floor surface. As a result, the dust collection opening is separated from the floor surface, so that the floor surface cannot be sufficiently cleaned.

  In addition, the narrow gap in the room can be cleaned by moving the inlet main body laterally and entering the gap in a state where the connecting pipe of the inlet port is vertically oriented with respect to the floor surface. In this case, if the extension pipe is also kept perpendicular to the floor surface, the user has to clean it in a cramped posture while supporting the extension pipe with one arm. Moreover, even if the extension pipe can be inclined from the vertical state with respect to the floor surface, the movement (rotation) range of the suction port body is limited, and sufficient cleaning cannot be performed when there are obstacles. In addition, when the suction port body is made to enter the gap, since the extending portion protrudes behind the suction port portion, it is difficult for the extension portion to enter the narrow gap due to the extension portion.

  When maintaining the rotating brush, it is necessary to remove one roller unit. At this time, the screw and one roller unit can be removed by inserting a coin into a groove formed in the screw head and turning it. it can. Therefore, when the user does not hold the coin, the user has to take out the coin from the wallet or the like and prepare it, and the maintenance work for the rotating brush cannot be started immediately. Such a trouble is troublesome for the user and reduces the maintainability of the rotating brush.

  This invention is made | formed in view of such a subject, and it aims at providing the suction port body excellent in operativity and also excellent in maintainability, and a vacuum cleaner provided with the same.

Thus, according to the present invention, the suction port body of the vacuum cleaner connected to the cleaner body via the suction hose, the suction port body having a dust collection opening ,
The suction port body includes a housing having a bottom surface on which the dust collection opening is formed, a rotating brush rotatably provided on the dust collection opening, and the dust collection opening on the bottom surface of the housing. A pair of brush covers provided on both sides in the longitudinal direction to prevent the rotating brush from falling off from the dust collection opening,
One of the pair of brush covers and a part of the casing are provided with a lock mechanism for manually detachably locking the one brush cover to the casing.
The lock mechanism includes a movable member attached to the one brush cover side, and a fixed member provided in the housing of the suction port body,
The movable member includes a shaft portion, an operation lever provided at one end of the shaft portion, a lock claw provided at the other end of the shaft portion, and a retaining piece provided on the lock claw in the shaft portion. And
The fixing member is a cylindrical member fixed to the housing of the suction port body, and includes a boss portion, an inner flange portion provided at an opening end of the boss portion, and the lock claw of the movable member. A notch portion formed on the inner peripheral edge of the inner flange portion so as to be inserted,
The brush cover includes a through hole, a notch formed at an inner peripheral edge of the through hole so that the lock claw and the retaining piece of the movable member can be inserted, the shaft portion of the movable member, and A storage recess for storing the operation lever; and an operation recess for inserting a user's finger under the operation lever;
A suction port body is provided in which the notch portion of the fixing member and the notch portion of the brush cover are arranged at a position coincident when viewed from the axial direction .

  Moreover, according to another viewpoint of this invention, the vacuum cleaner provided with the vacuum cleaner main body incorporating an electric blower, the said suction inlet body, and the suction hose which connects this suction inlet body and the said vacuum cleaner main body. Is provided.

According to the present invention , since the user can remove the brush cover without trouble, the maintainability of the rotating brush is improved. Moreover, there is a possibility that the brush cover may come off unexpectedly during the unlocking operation. And there is a possibility of dropping the rotating brush as well. On the other hand, since the operation lever is attached to the brush cover that holds the rotating brush, the brush cover does not fall off unexpectedly during the unlocking operation.

It is a perspective view which shows a vacuum cleaner provided with Embodiment 1 of the suction inlet of this invention. It is a perspective view which shows Embodiment 1 of the suction inlet body of this invention. It is a right view of the suction inlet body of FIG. It is a fragmentary sectional view which shows the internal structure of the suction inlet body of FIG. It is a bottom view of the suction inlet body of FIG. It is an exploded view of the suction inlet body of FIG. It is a figure which shows the state at the time of the clearance gap cleaning of the suction inlet body of FIG. 2, Comprising: (A) is a perspective view, (B) is a top view. It is a perspective view which shows the state at the time of cleaning under a table of the suction inlet body of FIG. It is a side view which shows the state at the time of cleaning under a table of the suction inlet body of FIG. It is a figure explaining operation at the time of under-table cleaning of the suction inlet body of FIG. It is a perspective view which shows the brush cover with a locking mechanism in the suction inlet body of FIG. 2, Comprising: (A) shows a locked state and (B) shows a lock release state. It is an exploded view of the brush cover with a lock mechanism of FIG. 12A and 12B are diagrams illustrating a lock mechanism in the brush cover of FIG. 11, in which FIG. 11A illustrates the structure on the operation lever side, and FIG. 11B illustrates the structure on the brush cover side and the frame side. It is a bottom view of the suction inlet body of FIG. 2, Comprising: (A) shows the unlocking state of a locking mechanism, (B) shows the state which removed the brush cover with a locking mechanism.

(Embodiment 1)
FIG. 1 is a perspective view showing a vacuum cleaner provided with Embodiment 1 of the suction port body of the present invention.
This electric vacuum cleaner A includes a vacuum cleaner body 100 incorporating an electric blower, a suction port body 300, and a suction hose 200 that connects the suction port body 300 and the cleaner body 100.

  In the case of Embodiment 1, the suction hose 200 includes a flexible hose portion 211 having one end connected to the cleaner main body 100, an operation portion 212 connected to the other end of the flexible hose portion 211, and an operation portion 212. A hose body 210 having a handle 213 provided and an extension hose 220 connecting the hose body 210 and the suction port body 300 are provided. In addition, a conductive ring is used for the wiring connection portion between the flexible hose portion 211 and the operation portion 212, whereby the flexible hose portion 211 and the operation portion 212 are relatively rotatably connected. Has been. Thereby, the twist of the flexible hose part 211 is eliminated.

  Hereinafter, the suction port 300 as the present invention will be mainly described.

<Overall configuration of suction port>
2 is a perspective view showing an embodiment of the suction port body of the present invention, FIG. 3 is a right side view of the suction port body of FIG. 2, and FIG. 4 shows the internal structure of the suction port body of FIG. 5 is a partial cross-sectional view, FIG. 5 is a bottom view of the suction port body of FIG. 2, and FIG. 6 is an exploded view of the suction port body of FIG.

  The suction port body 300 has a T-shape as a whole, a suction port body 310 having a dust collection opening 310a, a connection pipe 330 connected to the extension hose portion 220 of the suction hose 200, a suction port body 310, A connecting pipe 320 that connects the connecting pipe 330, a first joint part 340 provided between the suction port main body 310 and the connecting pipe 320, and a second provided between the connecting pipe 320 and the connecting pipe 330. And a joint portion 350.

  The suction port main body 310 includes a dust collecting opening 310a, a lower housing 310b and an upper housing 310c that form a ventilation path for communicating the dust collecting opening 310a and the connecting pipe 320, and a plurality of passages of the upper housing 310c. A cover 310d that covers the pores and a bumper 310e attached to the front end of the lower housing 310b are provided.

  Further, the suction port body 310 includes a rotary brush 311 rotatably provided in the dust collection opening 310a, a motor M, and a rotation including a timing belt f1 and a pulley that transmit the rotational force of the motor M to the rotary brush 311. A force transmission mechanism F; a first roller 312a and a shaft 312b provided at a central rear portion of the lower housing 310b; and a switch device 313 including a switching roller 313a provided at one end of the lower housing 310b. When the suction port main body 310 is lifted from the floor surface, the switching roller 313a protrudes downward and switches from ON to OFF, thereby stopping the driving of the motor M. The lead wire of the motor M is electrically connected to a pair of connection terminals 360 provided so as to protrude from the rear end side of the connection pipe 330 through the inside of the suction port body 310, the connection pipe 320, and the connection pipe 330. Yes.

  In the suction inlet main body 310, a pair of brush covers 314 and 315 are detachably attached to both end sides of the dust collection opening 310a of the lower housing 310b. These brush covers 314 and 315 are provided on both sides in the longitudinal direction of the dust collecting opening 310a on the bottom surface of the rotating brush 311 so as to rotatably support both ends of the rotating brush 311 and prevent the falling from the dust collecting opening 311a. It is preventing.

  Further, a lock mechanism 316 for manually detachably locking one brush cover 314 to the lower housing 310b is provided in a part of the brush cover 314 and the lower housing 310b of the pair of brush covers 314 and 315. This will be described in detail later. The other brush cover 315 is screwed.

  The connecting pipe 320 is disposed on the suction port main body 310 side and the connecting pipe 330 side, and can be rotated around the same first axis P1, and the second cylinder part 321 and the second cylinder part 322 can be rotated. A support plate 323 provided integrally with the first cylindrical portion 321 so as to rotatably support the portion 322, a second roller 324a rotatably provided on the support plate 323, and a shaft 324b thereof. ing. At this time, the first axis P1 is a direction orthogonal to the second axis P2 parallel to the longitudinal direction of the suction port body 310.

  The first cylindrical portion 321 is connected to the large-diameter portion 321a provided concentrically with the first axis P1 and in front of the large-diameter portion 321a so as to be displaced downward from the first axis P1. A small-diameter portion 321b and an annular flange portion 321c provided in a radially protruding manner at a step portion between the large-diameter portion 321a and the small-diameter portion 321b.

The second cylindrical portion 322 is in sliding contact with a cylindrical portion 322a that is slidably fitted to an annular edge of the flange portion 321c of the first cylindrical portion 321 and a lower portion of the large-diameter portion 321a of the first cylindrical portion 321. The arc portion 322b provided inside the cylindrical portion 322a, the concave curved surface portion 322c provided at the lower rear end of the cylindrical portion 322a, and the rear end of the support plate 323 of the first cylindrical portion 321 can be slidably contacted. And a support piece 322d provided at the rear end of the concave curved surface portion 322c. A notch 322a ₁ is formed at the upper rear end of the cylindrical portion 322a. The concave curved surface, which is the inner surface of the concave curved surface portion 322c, is disposed on a concentric circle centered on a third axis P3 parallel to the second axis P2.

  In addition, the connection pipe 320 prevents the connection between the first cylinder part 321 and the second cylinder part 322 between the large diameter part 321a of the first cylinder part 321 and the cylinder part 322a of the second cylinder part 322. A detachment prevention mechanism 325 is further provided.

  The detachment preventing mechanism 325 includes a concave circumferential groove formed on the outer circumferential surface of the large diameter portion 321a, a convex member 325a fitted into the concave circumferential groove, and an inner circumferential surface of the cylindrical portion 322a so as to face the convex member 325a. And an arcuate spacer member 325b having a boss portion into which the protrusion portion is fitted, and a coil spring 325c inserted into the boss portion of the spacer member 325b.

  The spacer member 325b is fitted to the outer peripheral surface of the large diameter portion 321a so as to be slidable so as to press the convex member 325a by the coil spring 325c. An arc-shaped protruding piece that holds the front end of the spacer member 325b is formed on the upper portion of the flange portion 321c of the first cylindrical portion 321. A protruding portion that holds the rear end of the spacer member 325b is formed on the cylindrical portion 322a of the second cylindrical portion 322. A piece is formed.

  The connection pipe 330 includes a connection pipe main body 331 and a cover member 332 that covers a part of the connection pipe main body 331. The front end opening of the connecting pipe main body 331 is enlarged in a trumpet shape.

The first joint portion 340 includes an upper arc space forming portion 341a and a lower arc space forming portion 341b, and an upper arc portion 342a and a lower arc portion 342b.
The upper arc portion 342a and the lower arc portion 342b are integrally connected to the small diameter portion 321b of the first cylindrical portion 321 and a vent is formed at the center position of the concave curved surface formed by them.

Also, a substantially semi-cylindrical duct member 341 centered on the second axis P2 is provided so as to be slidable on the front surfaces (concave surfaces) of the upper arc portion 342a and the lower arc portion 342b. An upper arc space forming portion 341a and a lower arc space forming portion 341b are formed by the upper casing 310c and the lower casing 310b. The upper arc space forming portion 341a and the lower arc space forming portion 341b form an arc space on a concentric circle centering on the second axis P2 of the suction port body 310. The upper arc portion 342a and the lower arc portion 342b are in sliding contact within the arc-shaped spaces of the upper arc space forming portion 341a and the lower arc space forming portion 341b.
Thus, the 1st joint part 340 is comprised from one element of the suction inlet main body 310, and one element of the connection pipe 330. FIG.

The second joint part 350 includes a notch part 322a ₁ and a concave curved surface part 322c provided at the rear end of the connecting pipe 320, and a convex curved surface part 351 and an arc sliding contact part 352 provided at the front end of the connection pipe 330. Have.
The convex curved surface portion 351 is connected to the front end of the cover member 332 of the connection pipe 330 so as to be slidable into contact with the end edge of the notch portion 321a ₁ .
The arc-sliding contact portion 352 is configured at the lower portion of the enlarged opening edge of the front end of the connecting pipe main body 331 and is in sliding contact with the concave curved surface of the concave curved surface portion 322c.
That is, the second joint part 350 is composed of one element of the connection pipe 320 and one component of the connection pipe 330.

FIGS. 7A and 7B are views showing a state of the suction port body in FIG. 2 during the clearance cleaning, in which FIG. 7A is a perspective view and FIG. 7B is a plan view. 8 is a perspective view showing a state of the suction port body of FIG. 2 during cleaning under the table, and FIG. 9 is a side view showing a state of the suction port body of FIG. 2 during cleaning under the table. These are figures explaining operation at the time of under-table cleaning of the suction inlet body of FIG.
According to the suction port body 300 of the present invention configured as described above, the connection pipe 320 can swing around the second axis P <b> 2 with respect to the suction port body 310 by the first joint portion 340. As a swing angle at this time, it can be set as the range of 0 degree (lowermost position)-90 degree (uppermost position), for example.

  Further, in the connecting pipe 320, the second cylinder part 322 can be rotated around the first axis P1 with respect to the first cylinder part 321. As a rotation angle at this time, for example, a range of 90 ° from the state where the handle 213 of the suction hose 200 is directed to the front (0 °) can be set to the left and right respectively.

  Further, the connection pipe 330 can be swung around the third axis P3 with respect to the connection pipe 320 by the second joint portion 350. As a swing angle at this time, it can be set as the range of 0 degree (lowermost position)-90 degree (uppermost position), for example. In this embodiment, the range is from about 10 ° (the lowest position) to about 70 ° (the highest position).

  Therefore, the connecting pipe 320 is swung about 90 ° with respect to the suction port body 310, the second cylindrical part 322 is rotated about 90 ° with respect to the first cylindrical part 321, and the connecting pipe is connected to the connecting pipe 320. When 330 is swung about 60 °, as shown in FIGS. 7A and 7B, the connection pipe 330 can be made substantially parallel to the suction inlet body 310. That is, the suction port main body 310 is within the width. That is, the user can make the suction inlet main body 310 parallel to the traveling direction by turning the handle 213 180 degrees so as to be twisted right or left without changing the standing position. And there is no restriction | limiting in the movement (rotation) range of the suction inlet 310, and it can clean without worrying about an obstruction.

At this time, since the support plate 323 of the connection pipe 320 rises vertically with respect to the suction port body 310, the width of the suction port body 300 viewed from above is substantially the same as the width W of the suction port body 310.
By setting the suction port body 300 to this state, the suction port body 300 can be entered and cleaned without difficulty in a narrow gap up to the width W _{1 in} the room. In this state, the suction port body 300 can be easily cleaned along the wall. At this time, since the handle 213 faces downward, the user only has to change the holding method. The width W ₁ is a width including the second roller 324 in a state where the second roller 324 and the support plate 323 are vertically raised. Therefore, the dimension is slightly larger than the width W.

Furthermore, the state at the time of the clearance clearance cleaning of the suction inlet body 300 demonstrated in FIG. 7 (A) and (B) can be made into the state at the time of under-table cleaning as shown to FIG. 8 and FIG.
More specifically, as shown in FIG. 10A, when cleaning the table or under the desk, the bumper 310e of the inlet main body 310 collides with the legs L to these legs L to advance the inlet 300. I can't. In this case, as described in FIGS. 7A and 7B, the handle 213 is rotated 180 ° to the right or left (right in FIG. 10), and as shown in FIG. Is substantially parallel to the connecting tube 330. At this time, the handle 213 is twisted to the right when the leg L hits the right side of the suction port main body 310 and to the left when the leg L hits the left side of the suction port main body 310.

Next, when the user further twists the handle 213 to the right or left (right in FIG. 10) without changing the standing position, the suction port main body 310 rotates 90 degrees so as to go around to the back side of the leg L.
As described above, according to the suction port body 300 of the present invention, the user can efficiently clean the table or the desk under which the legs L are obstructed without changing the standing position. That is, the range on the back side of the leg L can be easily cleaned. If the handle is twisted in the opposite direction, the original state is restored.

<About brush cover and lock mechanism>
11 is a perspective view showing a brush cover with a lock mechanism in the suction port body of FIG. 2, wherein (A) shows a locked state and (B) shows a unlocked state. FIG. 12 is an exploded view of the brush cover with a lock mechanism of FIG. FIG. 13 is a view for explaining a lock mechanism in the brush cover of FIG. 11, (A) shows the structure on the operation lever side, and (B) shows the structure on the brush cover side and the frame side. 14 is a bottom view of the suction port body of FIG. 2, (A) shows the unlocked state of the lock mechanism, and (B) shows the state where the brush cover with the lock mechanism is removed.

As described above, one of the pair of brush covers 314 and 315 is provided with a lock mechanism 316 that detachably locks one of the brush covers 314 to the frame member manually. It has been.
The lock mechanism 316 includes a movable member 316a attached to the brush cover 314 side and a fixed member 316b provided in the lower casing 310b of the suction port main body 310.

Movable member 316a includes a shaft portion 316a _1, an operating lever 316a ₂ provided at one end of the shaft portion 316a _1, and a locking claw 316a ₃ provided at the other end of the shaft portion 316a _1, further axial A retaining piece 316a ₄ is provided closer to the middle than the lock claw 316a ₃ in the portion 316a ₁ . In the first embodiment, a pair of locking claws 316a ₃ are provided at equal intervals in the circumferential direction, a pair of retaining pieces 316a ₄ are provided at equal intervals in the circumferential direction, and the locking claws 316a ₃ and the retaining pieces 316a ₄ have a predetermined center angle. A case where the position is shifted by α (for example, 45 °) is illustrated.

Fixing member 316b has a cylindrical member fixed to the lower housing 310b of the suction inlet main body 310, a boss portion 316b _1, a flange portion 316b ₂ Among provided at the opening end of the boss portion 316b _1, the inner flange A pair of notch portions 316b ₃ are formed at equal intervals in the circumferential direction on the inner peripheral edge of the portion 316b ₂ . At this time, each notch 316b ₃ is formed in a size slightly larger than each lock claw 316a ₃ . The fixing member 316b may be configured by omitting the boss portion 316b ₁ and forming a through hole having the notch portion 316b ₃ in a plate provided in the lower housing 310b.

The brush cover 314 includes a through hole 314a through which the pair of lock claws 316a ₃ and retaining pieces 316a ₄ of the movable member 316a are inserted, and a pair of notches 314b formed at equal intervals in the circumferential direction on the inner periphery of the through hole 314a. And a storage recess 314c for storing the shaft portion 316a ₁ and the operation lever 316a ₂ of the movable member 316a, and an operation recess 314d for inserting a user's finger under the operation lever 316a ₂ . In the case of the embodiment, each notch 314 b of the brush cover 314 is disposed at a position that coincides with each notch 316 b ₃ of the lock mechanism 316.

More specifically, a hook portion 314e is provided at one end of the brush cover 314, and the hook portion 314e is configured to be locked in a locking recess (not shown) formed in the frame member of the suction port body 310. Has been.
In addition, since it is difficult for a user with a long nail to insert his / her finger into the operation recess 314d and thus it is difficult to grasp the operation lever 316a2 with his / her finger, the operation lever 316a ₂ can be rotated by a coin. _A concave groove 316a ₅ is formed on the surface of ₂ .

Further, on the outer surface of the shaft portion 316a ₁ , a first flat surface 316a ₁₁ that can face the flat inner surface of the housing recess 314c of the brush cover 314 when the operation lever 316a ₂ in the locked position is rotated by 45 °, and then, Further, a second flat surface 316a ₁₂ is provided that can face the inner surface of the housing recess 314c of the brush cover 314 when the operation lever 316a ₂ is rotated by 45 °.

Further, the brush cover 314 and the lock mechanism 316 are configured as follows.
Since each lock claw 316a ₃ is hooked on the inner flange portion 316b ₂ in the locked state, the brush cover 314 is fixed to the frame member of the suction inlet main body 310 together with the movable member 316a.
When the operation lever 316a ₂ in the locked state is rotated by 45 °, each lock claw 316a ₃ moves to the position of each notch 316b ₃ to release the lock, and the movable member 316a is fixed together with the brush cover 314. It can be detached from 316b. At this time, since the first flat surface 316a ₁₁ of the movable member 316a has moved to a position where it faces the flat inner surface of the housing recess 314c of the brush cover 314, the rotational resistance rapidly decreases, so this position is the unlocked position. I understand that there is.

Further, if the operating lever 316a ₂ is rotated to pass the retaining pieces 316a ₄ through the notches 314b, and the lock claws 316a ₃ are similarly passed through the notches 314b, the movable member 316a is moved to the brush cover. The movable member 316a can be assembled to the brush cover 314 by the reverse operation.

According to the brush cover 314 and the lock mechanism 316 configured in this way, as shown in FIGS. 14A and 14B, the operation lever 316a ₂ is picked and rotated without using a tool such as a coin. Since the lock can be released only by this, the brush cover 314 can be removed immediately during the maintenance of the rotating brush 311. That is, since the user can remove the brush cover 314 without trouble, the maintainability of the rotating brush 311 is improved.

(Embodiment 2)
In the case of the electric vacuum cleaner A of the first embodiment, the suction port body 300 is deformed into the form shown in FIGS. 7A and 7B when cleaning the gap in the room. At this time, the handle 213 of the suction hose 200 is changed. Becomes downward.
Therefore, in the vacuum cleaner of the second embodiment, although not shown, the operation portion 212 of the suction hose 200 is divided into two parts, a base end side portion (handle side portion) and a distal end side portion (extension hose side portion). And these are connected so that relative rotation is possible. In this case, similarly to the case where the wiring connection portion between the flexible hose portion 211 and the operation portion 212 is rotatably connected by the conductive ring, the proximal end portion and the distal end portion of the operation portion 212 are connected to each other. A conductive ring may be used for the wiring connection portion. Furthermore, you may provide the lock mechanism which controls the relative rotation of the base end side part and front end side part in the operation part 212 in the connection part vicinity of these two components.

  In this way, the handle 213 in the state shown in FIGS. 7A and 7B can be directed upward, and the user moves the suction port 300 by grasping the handle 213 that faces upward as usual. be able to. At this time, by providing a lock mechanism, when the connecting pipe 330 of the suction port body 300 is rotated by 90 ° with respect to the suction port body 310, the base end side portion of the operation portion 212 is idle with respect to the distal end side portion. Disappear. Then, after the handle 213 is turned downward, the handle 213 is turned upward by releasing the lock mechanism and then locked again.

  As the locking mechanism, for example, a locking piece and a resilient member for resiliently urging the locking piece are provided on the proximal end portion of the operation portion 212, while two positions on the distal end side portion of the operation portion 212 are provided. A recess is provided at the lock position. As a result, when the base end side portion is rotated with respect to the distal end side portion, the locking piece locked to the concave portion at one lock position is released from the concave portion, and the elastic piece is released when the locking piece moves to the other concave portion. The locking piece is pushed into the concave portion by the member and locked.

(Summary)
The suction port body of the present invention is a suction port body of a vacuum cleaner connected to the cleaner body via a suction hose, and includes a suction port body having a dust collection opening ,
The suction port body includes a housing having a bottom surface on which the dust collection opening is formed, a rotating brush rotatably provided on the dust collection opening, and the dust collection opening on the bottom surface of the housing. A pair of brush covers provided on both sides in the longitudinal direction to prevent the rotating brush from falling off from the dust collection opening,
One of the pair of brush covers and a part of the casing are provided with a lock mechanism for manually detachably locking the one brush cover to the casing.
The lock mechanism includes a movable member attached to the one brush cover side, and a fixed member provided in the housing of the suction port body,
The movable member includes a shaft portion, an operation lever provided at one end of the shaft portion, a lock claw provided at the other end of the shaft portion, and a retaining piece provided on the lock claw in the shaft portion. And
The fixing member is a cylindrical member fixed to the housing of the suction port body, and includes a boss portion, an inner flange portion provided at an opening end of the boss portion, and the lock claw of the movable member. A notch portion formed on the inner peripheral edge of the inner flange portion so as to be inserted,
The brush cover includes a through hole, a notch formed at an inner peripheral edge of the through hole so that the lock claw and the retaining piece of the movable member can be inserted, the shaft portion of the movable member, and A storage recess for storing the operation lever; and an operation recess for inserting a user's finger under the operation lever;
The notch portion of the fixing member and the notch portion of the brush cover are arranged at positions that coincide with each other when viewed from the axial direction .

Moreover, the vacuum cleaner of this invention is equipped with the vacuum cleaner main body which incorporates an electric blower, the said suction inlet body, and the suction hose which connects this suction inlet body and the said vacuum cleaner main body.
This electric vacuum cleaner may be configured as follows.
That is, the suction hose has a flexible hose portion having one end connected to the cleaner body, an operation portion connected to the other end of the flexible hose portion, and a hose having a handle provided in the operation portion. A main body,
The operation part is divided into two parts, a handle side part and an extension hose part side, and these are connected so as to be relatively rotatable,
A lock mechanism may be provided in the vicinity of the connection portion between the handle-side portion and the extension hose portion-side portion of the operation portion to restrict the relative rotation thereof.

  The disclosed embodiments should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 100 Vacuum cleaner main body 200 Suction hose 300 Suction port body 310 Suction port main body 310a Dust collection opening part 311 Rotating brush 312 1st roller 314, 315 Brush cover 316 Lock mechanism 320 Connection pipe 321 1st cylinder part 322 2nd cylinder part 323 Support Plate 324 Second roller 330 Connection pipe 340 First joint part 350 Second joint part A Vacuum cleaner P1 First axis P2 Second axis P3 Third axis

Claims (2)

A vacuum cleaner suction port connected to the vacuum cleaner body via a suction hose, comprising a suction port body having a dust collection opening ,
The suction port body includes a housing having a bottom surface on which the dust collection opening is formed, a rotating brush rotatably provided on the dust collection opening, and the dust collection opening on the bottom surface of the housing. A pair of brush covers provided on both sides in the longitudinal direction to prevent the rotating brush from falling off from the dust collection opening,
One of the pair of brush covers and a part of the casing are provided with a lock mechanism for manually detachably locking the one brush cover to the casing.
The lock mechanism includes a movable member attached to the one brush cover side, and a fixed member provided in the housing of the suction port body,
The movable member includes a shaft portion, an operation lever provided at one end of the shaft portion, a lock claw provided at the other end of the shaft portion, and a retaining piece provided on the lock claw in the shaft portion. And
The fixing member is a cylindrical member fixed to the housing of the suction port body, and includes a boss portion, an inner flange portion provided at an opening end of the boss portion, and the lock claw of the movable member. A notch portion formed on the inner peripheral edge of the inner flange portion so as to be inserted,
The brush cover includes a through hole, a notch formed at an inner peripheral edge of the through hole so that the lock claw and the retaining piece of the movable member can be inserted, the shaft portion of the movable member, and A storage recess for storing the operation lever; and an operation recess for inserting a user's finger under the operation lever;
The suction port body , wherein the notch portion of the fixing member and the notch portion of the brush cover are arranged at a position coincident when viewed from the axial direction . The vacuum cleaner provided with the vacuum cleaner main body which incorporates an electric blower, the suction inlet body of Claim 1, and the suction hose which connects this suction inlet body and the said vacuum cleaner main body.